"Every generation discovers rock 'n' roll for itself," says Lee Rickard, who founded the Burger franchise with Sean Bohrman in 2007. They began operation as an independent record label specializing in releasing cassettes, then opened a record store and, eventually, started producing concerts.

"We envisioned Burger as an umbrella company that would release the records we loved and hype real rock 'n' roll," he says. "We taught ourselves how to book gigs and began putting on weekend parties with goofy names like the Burger Bash, the Burger Brouhaha and the Burger Bonanza. They weren't so much festivals as a collection of gigs. We got more organized when we met Marc Ribak. He's a rock 'n' roll maniac and helped bring the Burger Boogaloo to Oakland."

The fifth annual Burger Boogaloo returns to Oakland's Mosswood Park this weekend. Featuring nearly two dozen acts, the two-day music festival features performers for fans of all ages.

"We put on shows that appeal to rockers of all ages, not just punks and stoners," Bohrman says. "We book bands with a cross-generational appeal. Ronnie Spector is headlining this year - with her on the bill we're spanning six generations of rock 'n' roll."

Rickard, Bohrman and Ribak favor bands that give a modern twist to the classic sounds of the '50s and '60s. Here are some of this weekend's acts to watch:

Ronnie Spector: On the lead singer of the Ronettes, Rickard says, "We're huge girl-group fans." "Ronnie is 70, and when she starts shaking her thing, she gets the audience moving," Ribak says. "We like acts that can get people on their feet - bands with a fast, uplifting beat."

Thee Oh Sees: "John Dwyer started Thee Oh Sees in San Francisco," Ribak says. "They make psychedelic garage rock with a groove you can't resist. Dwyer plays a guitar that weighs 50 pounds and wields it like a sword. He's into generating a sound and vibration that can overwhelm an audience."

The Bananas: The Bananas have been playing loud, melodic punk for 20 years. "When we were kids, we drove up to (the Berkeley punk venue) Gilman Street to see them and caught every show they played in Southern California," Bohrman says. "They're from Sacramento and don't come south that often. To me, they're the ultimate party band."

Shannon & the Clams: The Clams "get everybody going with fast songs that incorporate doo-wop, R&B, surf, punk and psychedelic garage music, then they'll break it down for a ballad and have people slow-dancing," Ribak says. "I like groups that play fast, then break up the beat and throw in a slow or mid-tempo song. It keeps things exciting."

The Muffs: "I didn't think many people knew about the Muffs," Ribak says, "but the younger musicians on the bill are really excited to be playing with them. They've been going for a long time and still have a youthful energy that a lot of the younger bands today don't have."